Occurrence and population dynamics of eobania vermiculata (muller) infesting certain ornamental plants at Zagazig district, Sharkia governorate [electronic resource].

Includes references.

Host list, level of infestation and population dynamics of the brown garden snail with reflexed lip, Eobania vermiculata (Muller), were determined on ornamental plants at Zagazig district during two successive seasons of 2008/2009 and 2009/2010. Results revealed that E. vermiculata snail was found associated with some herbaceous and perennial plants at certain gardens and nurseries of Zagazig University. The majority of examined plants were found with low infestation especially sweet pea, dodonaea, watercress, zeninaria, spider plant, purple heart and palm beach bells. Marguerite and sprekelia showed low infestation during 2008 while they were detected with moderate infestation during 2009 season. Cineraria was found with moderate infestation during 2008 season and heavy infestation during 2009 season. Ficus as perennial ornamental plant i) indicated low infestation on soil and heavy infestation on plants during the two seasons. The population dynamics of E. vermiculata snail differed from host plant to another and from month to another. For instances, population density on some herbaceous plants reached its maximum values during February and March for sprekelia, March and May for sweet pea and during April for cineraria. Regarding perennial plants, the same trend was noticed, where population density of E. vermiculata snail reached its maximum values during May on gazania, April and September on ficus and July and August on rose.

Summary in Arabic.

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